US 1517877 A
Description (OCR text may contain errors)
' A. B. WALLEM i vALvs Filed June 27 l 1922 WITNESS `AORNEY m m m Patented Dec. 2, 1924.
AXEL B. VALLEM, OF CYNVYD, PENNSYLVANIA, ASSGNOR TO H. S. B. W.-COCHRANE CORPORATION, 0F PHILADELPH'IA, PENNSYLVANIA, A CORPORATION OF PENN sYLvANvIA.
To al? whom t may concer/n.:
Be it known that l, AXEL B. WTALLEM, a citizen of the United States of America. and resident ot' C vnu'yd. in the county ot Montgomery, State ot Pennsylvania, have invented certain new and useful lmillrovements l in Valves, ot which the. following is a true and exact description` reference being had to the accompanying drawings, which form a part thereof.
My invention relates to an inuliroved valve construction especially vvell adapted for use as a balanced rotary regulating' valve to be actuated through a valve stem extending through the side of the casing and it has for .its object to provide a valve structure characterized b` great simplicity and reliability in construction and operation, and a special feature oi my invention is to pro vide for the closing of the port connecting the inlet and outlet chambers of the casing.
The nature of my invention and the features ot' novelty which characterize itwill be best understood as described in connection 'ith the drawings in Which it is illustrated and in Which- Figure l is a sectional plan view ot' a valve casing and valve embodying my invention, and
Figure 2 is a similar sectional plan view of a modified construction also embodying some of my improvements. j
Referring rst to Fig. l, A is a valve casing divided into inlet and outlet chambers A and A2 by a partition B, B, having a valve seated port C formed in it which connects the inlet and outlet chambers of the casing. A3 is an opening formed through the Wall of the casing on the inlet chamber side therein and opposite to the valve seated port C of the partition. A4 is an opening formed through the opposite Wall of the casing leading, as shown, to the outlet cha-mber side of the casing, this opening being for the purpose of permitting the insertion of the valve or valve and valve seat. D is a seat Jfor a tubular valve seat formed in the partition Wall B, and D is also a seat i'or the tubular valveI seat 'formed in the Wall ot' the casing. E is a cover for the opening A3 having, as shown, an opening E formed through it for the passage of a. valve actuating stem and a conical shoulder E2 formed on the inside of this opening. E3 a spring 1922. serial No. 571,243.
seat formed on the outside of the cover. F a vcover for the opening 'r t in the ball et the casing. said cover being formed with an opening F for the valve stem, a conical seat l?2 on the inside ot this opening and a vspring' seat F on the outside thereof. (t is ay tulnilarvalve seat formed with slo-tted luu'torations audseated in the tubular surfaces D, D', as shown. The valve seat G' is 'formed 'integrally with the cover plate F but it will be understood that this is not essential. H is a tubular slotted valve Working in the valve scat (l and having a valve stein H which extends throi'igh the opening l" ot the cover lf and is 'formed with a shoulder H2 which fits against the shoulder F2 on the cover F. l is a valve actuating lever secured to the valve stem H Aand J a spring' which acts to draw the valve stem outward and keep the conical abutting faces F2 and H2 in contact. K is a stop for the valve actuating lever.
L is a valve provided for closing the port connecting the inlet and outlet chambers ot' the casing and adapted to be seated on the valve seat indicated at C. The valve L is provided with an internally l threaded tubular extension indicated at L. M is a valve actuating stem extending through the perforationy E in the cover E formed With a threaded portion M screwing into the threaded tubular extension L of the lvalve and With a conical shoulder M2 Which tits againstv the shoulderE2 of the cover. M3 is a hand Wheel for rotating the lvalve stem M and J a spring acting, as shown, to draw the valve stem M outward.
N and N are respectively inlet and outlet pipes connecting with the chambers A and A2.
ln assembling t-he dili'erent parts of the valve constructed as shown in Fig. l, the valve seat G will be inserted in position in its seats D, D, and the valve H with its stem H secured to it as shown, is inserted in its seat and the cover F slipped over the valve stem and secured in position as shown.
The valve L will also be inserted through the ope-ning A3, the cover E then being` secured in the opening and the threaded portion. M engaged with the threaded sleeve of the valve L.
In normal ope 'ation the valve L is, of
course, open leaving a free passage through the Valve seated port C between the inlet chamber andthe inside ot the tubular valve. The vliquid enteringv the chamber A will pass to the inside ot' the tubular valve H and with the slots in this valve registered with the slots in the valve sleeve@ the iiuid will pass freely into the outlet chamber A2. The pressure head of the fluid passing` through the casing' will always exert more force to press the valve H outward and keep `itsvconical shoulder H2 in contact with a conical shoulder T2 ot the cover Fand this 'tore acting on the valve can advantageously be suppleinented b y the action of the spring J; the torce tendingto draw the valve H outward will ordinarily be sutlicient to maintain a sufficiently tight joint between vthe conical abutments and make the use of a stutling boX unnecessary or it any vstuliing boxes should he found advisable one/*exerting but little rictional resistance to the movement ofthe valve can be employed.
The closure valve L is provided to cut otl connection between the inlet and outlet chamber ot the valve casing when desired as, tor instance, when it may be desirable to remove the tubular valve or tubular valve seat.
Referring now to the modil'ied construction shown in Fig. 2, c indicates thel valve casing which separated into .au inlet chamber a. and outlet chamber a2 k,by the partition indicated at l), L', fr. ln this construction .the opening` u" is formed through the wall oit the casing' on the outlet side for the insertion of the tubular valve seat and tubular valve, and tubular seats (Z and CZ are formed in the partition wall Z) and b2 for the tubular valve seatindicated at g which is here shown as detached from the closure and secured in position independently thereot'. L is the tubular valve Working' in the valve seat (/.and havingextending vfrom it :the .valve stem /L with `the conical shoulder h2 formed upon it. ./t' indica-tes the cover-tor the opening at formed with an opening` tor the valve stem andthe conical shoulder f2 on the inside of this opening'. fi" indicates a spring seat on the outside Aot `the cover;
i, i, the actuatinglever secured to the valve stem L and j a spring acting to draw 'the valve stem upward as indicated.
ln oliieratioinctluitl. Itrom the chamber u. passes through the slotted ports in the tubular sleeve g and tubular valve /1y and througl'i both ends ot the tubular valve into the outlet chamber if, the Lpressure ot' the l'luid together with the force exerted by the spring' y' tendinzgr yto hold vthe conical shoulders 7b2 and in contact with each other. preventing' the escape of tiuid through the opening` in the cover and making' unnecessary the yuse ot a stutting; box with the consequent trictional resistance to the movement ot the valve.
Having' now described my invention, what l claim as new and desire tosecure by Letters Patent, is:
il. A valve-casing having a `partition separating it into inlet and outlet chambers. said lpartition being toi-med to provide seat-s ter the -euds of a cylii'idrical valve `seat and an annular chamber surrounding;- the valve seat and formingL `a part otl one of the valve chan'ibers, in combination with a tubular cylindrical valve seat seated in said partition and having' symmetrically disposed .ports opening into the annular passage aforesaid and a tubular cylindrical valve rotatively littingg' in the tubular valve scat and having` *symmetrically disposed ports.
2. A valve casing' having;` a ypartition sul arating it. into inlet and outlet chambers. said partition being` formed to provide seats tor the ends of a cylindrical `valvescat and :in annular chamber surroundinoI the valve` seat and 'forming a part of one ci" the valv(` chambers. -said `partition having' also an opening` through lwhich .the chan'ibers ot the casing` communicate and a seat Jfor a closure valvesurrounding said opening, in combination witha tubular-cylindrical` .valve seal seated in said partition and havingY sym metrically disposed ports 'opening into the .annular passage aforesaid, a tubular cylindrical valve rotatively fitting in the tubular valve seat and having` symmetric-ally disposed ports and a closure valve operatable with v.the closure valve .seat aforesaid.
AXEL B. XVALLE M.